guest Moderator 管理成员 注册 2002-10-07 消息 402,600 荣誉分数 76 声望点数 228 2012-04-13 #1 Pre-engineered floor joists, made from wood chips and glue, burn twice as fast as traditional wooden joists and can suddenly collapse beneath the feet of firefighters. 查看新闻全文...
Pre-engineered floor joists, made from wood chips and glue, burn twice as fast as traditional wooden joists and can suddenly collapse beneath the feet of firefighters. 查看新闻全文...
